Those surfaces would be called the Occlusal surface of the posterior teeth.
Grinding.
they have flat teeth
Wallabies have flat teeth for grinding grasses and leaves.
No, reptiles typically have sharp, pointed teeth for gripping and tearing food, rather than flat grinding teeth like mammals. Some herbivorous reptiles may have more flattened teeth for crushing plant material, but they are not true grinding teeth like mammals.
Herbivores have flat teeth for grinding fibrous plant foods.
The front teeth have a chisel-like shape, the rear ones have a flat top for grinding.
molars
Moose are herbivores and eat grass, leaves and shrubs. They have flat grinding teeth.
horses have incisors and molars as their teeth
They have flat surfaced grinding teeth.
Herbivores have flat, grinding teeth in the front and back, and the carnivores have sharp teeth made for tearing meat.
horses all have flat, grinding teeth to help grind up grass, a quagga also does